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From Graeme-Miller <...@git.apache.org>
Subject [GitHub] brooklyn-server pull request #745: Azure ARM default network fixes from PR s...
Date Mon, 26 Jun 2017 11:30:36 GMT
GitHub user Graeme-Miller opened a pull request:

    https://github.com/apache/brooklyn-server/pull/745

    Azure ARM default network fixes from PR suggestions

    Important Note: Azure ARM doesn't currently work with the master of Brooklyn. Currently,
after a Azure ARM VM is created, JClouds attempts to list all of the nodes in the resource
group but cannot parse the result due to a missing property (vhd for DataDisk). I have tested
with the latest JClouds code in master and we do not have this issue. 
    
    However, we are currently on the latest released version of JClouds (2.0.1) and we cannot
pull in the code in mater until there is another JClouds release. As such, the code that has
been written for default network has been written against the code in JClouds master and will
work when we upgrade to the next version of JClouds. If you need working Azure ARM support,
and default networking build JClouds master locally, and build brooklyn against it.
    
    ---------------------
    
    Various fixes:
    - IpOptions were being added incorrectly to templateOptions. They were being set as a
map, when they should have been a list of maps
    - When checking templateOptions for existing config, look for 'networks' rather than NETWORK_NAME
config (which resolves to 'networkName'). Still use NETWORK_NAME config when checking in brooklyn
config
    - Check that a region has been set in brooklyn config (config.get(CLOUD_REGION_ID)) if
not, don't try and create a default network. It was suggested that I could move the default
network creation to later in JCloudsLocation after the templateOptions have been built. This
would mean that a default region would have been added to the templateOptions if none was
specified in config. I attempted to implement this, but ran into an issue. The AzureTemplateOptions
in JClouds 2.0.1 is different to the AzureTemplateOptions in JClouds master. As such, it is
not possible to amend the AzureTemplateOptions from Brooklyn code, as we would not be able
to modify the ipOptions (a concept that only exists in JClouds master). As such, I have put
the null check in for the time being. After the next JClouds release, I will come back and
fix this
    - Check for the situation where a default network exists, but a default subnet does not.
In this situation create a default subnet only
    
    ------------------------------
    
    @neykov pointed out there could be issues if we are trying to create multiple VM's at
the same time due to the these VMs all trying to create the default network/subnet. I have
investigated and I don't think this will be an issue. The default network creation is done
in the obtainOnce method of JCloudsLocation. If there were a situation where multiple VMs
tried to create the network at the same time, then all but one would fail. Brooklyn will by
default will then attempt to get a VM again, and this time it will succeed. To test this theory
I spooled up three AMPs, and at the same time kicked off a deployment of 5 VMs on each AMP
(15 total) to try and force this situation. Only 3/15 came up correctly, but the failures
were quota issues which means they got passed network creation.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Graeme-Miller/brooklyn-server fix_azure_default_network

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/brooklyn-server/pull/745.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #745
    
----
commit 923f452b18b415c39cd7b4f71768953091132f3f
Author: graeme.miller <graeme.miller@cloudsoftcorp.com>
Date:   2017-06-23T11:53:41Z

    Azure ARM default network fixes from PR suggestions

----


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